98623513 has 4 divisors (see below), whose sum is σ = 100484388. Its totient is φ = 96762640.

The previous prime is 98623487. The next prime is 98623523. The reversal of 98623513 is 31532689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31532689 = 2029 ⋅15541.

It can be written as a sum of positive squares in 2 ways, for example, as 65480464 + 33143049 = 8092^2 + 5757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98623513 is a prime.

It is a super-2 number, since 2×98623513² = 19453194632922338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98623523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930358 + ... + 930463.

It is an arithmetic number, because the mean of its divisors is an integer number (25121097).

Almost surely, 2^98623513 is an apocalyptic number.

It is an amenable number.

98623513 is a deficient number, since it is larger than the sum of its proper divisors (1860875).

98623513 is a wasteful number, since it uses less digits than its factorization.

98623513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860874.

The product of its digits is 38880, while the sum is 37.

The square root of 98623513 is about 9930.9371662497. The cubic root of 98623513 is about 462.0193407194.

The spelling of 98623513 in words is "ninety-eight million, six hundred twenty-three thousand, five hundred thirteen".